Published November 2009 | Version v1
Journal article Metadata-only

In situ observation of RedOx reactions of Pd/Sr-Fe-O catalysts for automotive emission

Creators

  • 1. Advanced Technology Research Laboratories, Nippon Steel Corp., 20-1 Shintomi, Futtsu, Chiba 293-8511 (Japan)
  • 2. Photon Factory, IMSS, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801 (Japan)
  • 3. Present: College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577 (Japan)

Description

We investigated the change in structures during reduction and oxidation of a new type of Pd on Sr-Fe-O catalyst for exhaust emission. In situ DXAFS techniques have shown changes in palladium states and oxygen concentration simultaneously during reduction and oxidation reactions. Quantitative analysis has shown that palladium atoms change their states between Pd(II*) and Pd(0) reversibly according to the gas atmosphere accompanying changes in the oxygen concentration. This reaction explains the high performance of the catalyst.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/190/1/012163

Additional details

Identifiers

DOI
10.1088/1742-6596/190/1/012163;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
190
Journal Issue
1
Journal Page Range
[6 p.]
ISSN
1742-6596

Conference

Title
14. international conference on X-ray absorption fine structure
Acronym
XAFS14
Dates
26-31 Jul 2009
Place
Camerino (Italy)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42030151
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION SPECTROSCOPY; ATOMS; CATALYSTS; OXIDATION; OXYGEN; PALLADIUM; PALLADIUM IONS; REDOX REACTIONS; REDUCTION; X-RAY SPECTROSCOPY
Descriptors DEC
CHARGED PARTICLES; CHEMICAL REACTIONS; ELEMENTS; IONS; METALS; NONMETALS; PLATINUM METALS; SPECTROSCOPY; TRANSITION ELEMENTS